Jiangsu OptimumNano Energy Co., Ltd. (hereinafter referred to as "Jiangsu OptimumNano") has the composite copper nickel sheet welding patent technology, which solves the problems of multiple cells welding and heat dissipation.
There are also more varieties of aluminum tubes, including square tubes, round tubes, oval tubes, and lean tubes. Different aluminum tubes have different roles. In recent years, the use of aluminum lean tube is more common.
This small potable size and light weight tape measure size is suitable as promotional giveaways. ABS plastic case can be customized per customer PMS color, bespoken imprinted with custom logo and advertisement.